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Iron oxide-silica aerogel and xerogel nanocomposite materials

Casula, M.F., Corrias, A., Paschina, G. (2001) Iron oxide-silica aerogel and xerogel nanocomposite materials. Journal of Non-Crystalline Solids, 293-29 (1). pp. 25-31. ISSN 0022-3093. (doi:10.1016/S0022-3093(01)00641-X) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1016/S0022-3093(01)00641-X

Abstract

The sol-gel method was used to prepare iron oxide-silica nanocomposite materials. Different drying conditions were used in order to obtain aerogel and xerogel materials. The samples were characterized by thermal analysis, X-ray diffraction (XRD), N2-physisorption and transmission electron microscopy (TEM) techniques. Aerogel samples have a much higher surface area than the xerogel samples; moreover, different supercritical drying conditions give rise to a different porous structure. The stabilization of the maghemite phase in the xerogel nanocomposites depends on the iron content and it is more difficult in the aerogel samples. The early sol-gel preparation stages also play an important role.

Item Type: Article
DOI/Identification number: 10.1016/S0022-3093(01)00641-X
Additional information: 8th Int. Conf. on Non-Crystalline Materials
Uncontrolled keywords: Iron oxides, Porosity, Silica gel, Sol-gels, Thermoanalysis, Transmission electron microscopy, X ray diffraction analysis, Xerogels, Nanostructured materials
Subjects: Q Science > QC Physics > QC176.8.N35 Nanoscience, nanotechnology
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Anna Corrias
Date Deposited: 17 Dec 2014 12:38 UTC
Last Modified: 29 May 2019 13:57 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/46226 (The current URI for this page, for reference purposes)
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